215052465 has 32 divisors (see below), whose sum is σ = 365129856. Its totient is φ = 107709440.

The previous prime is 215052451. The next prime is 215052493. The reversal of 215052465 is 564250512.

It is not a de Polignac number, because 215052465 - 2⁴ = 215052449 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 196570 + ... + 197660.

It is an arithmetic number, because the mean of its divisors is an integer number (11410308).

Almost surely, 2^215052465 is an apocalyptic number.

It is an amenable number.

215052465 is a deficient number, since it is larger than the sum of its proper divisors (150077391).

215052465 is a wasteful number, since it uses less digits than its factorization.

215052465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1889.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 215052465 is about 14664.6672311376. The cubic root of 215052465 is about 599.1213667452.

It can be divided in two parts, 2150 and 52465, that added together give a triangular number (54615 = T₃₃₀).

The spelling of 215052465 in words is "two hundred fifteen million, fifty-two thousand, four hundred sixty-five".